<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>高级管理员</title>
</head>
<body>
<p th:if="${loginUser!=null}">
    欢迎你, <span th:text="${loginUser.username}"></span>!
</p>
<h1>访问成功！</h1>
    <h1>高级管理员 </h1>
</body>
</html>